My bad about Addai, must had been thinking about TFL. Point 2, I remember the discussion last year about this same issue. Your starters start, and you play who gives you the best chance to win, not who is 100%. Leach even played a QB for half a season with a torn ACL. Given LSU's record, I think Miles got it right. Not pretty, but right. BTW, if worrying about playing a freshman at QB is stupid, one would think there would be a lot more freshmen showing their skills each year with all the mediocre upperclassmen out there.
